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Finding the Fourth Proportional to 350,406.40, 525,480 and 275,672.32

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Solution

The fourth proportional to 350,406.40, 525,480 and 275,672.32 is: 413,406.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,406.40 : 525,480 = 275,672.32 : x
  2. Step 2: Convert to fraction form
    350,406.40/525,480 = 275,672.32/x
  3. Step 3: Cross multiply
    350,406.40x = 525,480 × 275,672.32
  4. Step 4: Simplify right side
    350,406.40x = 144,860,290,713.60
  5. Step 5: Solve for x
    x = 144,860,290,713.60/350,406.40
  6. Step 6: Final answer
    x = 413,406.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.